USB memory stick has itself imposed write protect

[michael40]

How can I unlock a write protected USB 8gb memory stick, which does not have a lock switch?

 

[alvine]

right click on a file, under properties uncheck read only , apply changes

 

[michael40]

I have tried this, and also other suggested variances gleaned from the Interent, including reformatting the drive. Because the disk is locked it will not let me do anything at all. I have drawn a complete blank on being able to write anything further on the disk. At least I can read what is already saved, which includes several downloaded program files, all of which are readable. So I have now given up!